[lld] Avoid repeated hash lookups (NFC) #112299
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@llvm/pr-subscribers-platform-windows @llvm/pr-subscribers-lld-coff Author: Kazu Hirata (kazutakahirata) ChangesFull diff: https://github.com/llvm/llvm-project/pull/112299.diff 1 Files Affected:
diff --git a/lld/COFF/SymbolTable.cpp b/lld/COFF/SymbolTable.cpp
index 3bd471389daa1f..fa09ea64babb28 100644
--- a/lld/COFF/SymbolTable.cpp
+++ b/lld/COFF/SymbolTable.cpp
@@ -424,13 +424,11 @@ static void reportProblemSymbols(
if (!sym)
continue;
if (undefs.count(sym)) {
- auto it = firstDiag.find(sym);
- if (it == firstDiag.end()) {
- firstDiag[sym] = undefDiags.size();
+ auto [it, inserted] = firstDiag.try_emplace(sym, undefDiags.size());
+ if (inserted)
undefDiags.push_back({sym, {{file, symIndex}}});
- } else {
+ else
undefDiags[it->second].files.push_back({file, symIndex});
- }
}
if (localImports)
if (Symbol *imp = localImports->lookup(sym))
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@llvm/pr-subscribers-lld Author: Kazu Hirata (kazutakahirata) ChangesFull diff: https://github.com/llvm/llvm-project/pull/112299.diff 1 Files Affected:
diff --git a/lld/COFF/SymbolTable.cpp b/lld/COFF/SymbolTable.cpp
index 3bd471389daa1f..fa09ea64babb28 100644
--- a/lld/COFF/SymbolTable.cpp
+++ b/lld/COFF/SymbolTable.cpp
@@ -424,13 +424,11 @@ static void reportProblemSymbols(
if (!sym)
continue;
if (undefs.count(sym)) {
- auto it = firstDiag.find(sym);
- if (it == firstDiag.end()) {
- firstDiag[sym] = undefDiags.size();
+ auto [it, inserted] = firstDiag.try_emplace(sym, undefDiags.size());
+ if (inserted)
undefDiags.push_back({sym, {{file, symIndex}}});
- } else {
+ else
undefDiags[it->second].files.push_back({file, symIndex});
- }
}
if (localImports)
if (Symbol *imp = localImports->lookup(sym))
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DanielCChen
pushed a commit
to DanielCChen/llvm-project
that referenced
this pull request
Oct 16, 2024
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